fin-ASS-ter-ide
A pill that blocks the hormone responsible for male pattern hair loss — stops thinning and can regrow hair.
Also known as: Propecia, Proscar
FDA approved for: Male pattern hair loss (Propecia) · Benign prostatic hyperplasia (Proscar)
Last reviewed: April 2026
Your body converts testosterone into DHT (dihydrotestosterone), which shrinks hair follicles in men genetically prone to hair loss. Finasteride blocks 70% of this conversion, protecting follicles from DHT damage. Less DHT means follicles stay healthy and can recover.
Small tablet taken once daily with or without food
Frequency
Daily
Pain Level
○○○ None
Self-Administered
Yes — at home
Typical Range
1mg daily
Month 1–3
Too early for visible results. DHT levels are declining.
Month 3–6
Hair loss slows or stops. Some early regrowth.
Month 12+
Peak regrowth. Must continue for ongoing benefit.
Overall: Mild
Decreased libido
Reported by 1–2% of users. Usually resolves if medication is stopped.
Erectile changes
Reported by ~1% of users.
Breast tenderness
Very rare at 1mg dose.
• Women (especially pregnant — can cause birth defects in male fetuses)
• Children
• Liver disease
• Men planning to donate blood within 1 month
• No significant drug interactions at 1mg dose
Pregnancy: Women who are or may become pregnant must not handle crushed or broken finasteride tablets — can cause birth defects in male fetuses.
Finasteride blocks the cause (DHT); minoxidil stimulates growth regardless of cause. Best results come from combining both.
Minoxidil
A topical treatment that stimulates hair follicles to grow thicker, longer hair — originally developed as a blood pressure medication.
GHK-Cu
A naturally occurring copper peptide that stimulates collagen, promotes skin repair, and supports hair growth.
We don't currently offer this peptide — but we have protocols for similar goals.
Coming Soon →FDA-approved for at least one indication. Your provider will determine if this is appropriate for you.